package com.nowcoder.nowcodercommunity.util;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;

public class CookieUtil {
    public static String getValue(HttpServletRequest request,String name){
        if(request == null || name == null){
            throw new IllegalArgumentException("参数为空!");
        }

        Cookie[] cookies=request.getCookies();
        if(cookies != null){
            for(Cookie cookie:cookies){
                String cookieName=cookie.getName();
                if (cookieName.equals(name)){
                    return cookie.getValue();
                }
            }
        }

        return null;
    }
}
